server {
    # some configs

    location = / {
            index index.html;
            fastcgi_index index.html;
    }
or
    location / {
            index index.html;
            fastcgi_index index.html;
    }

}

location ~ .*(css|htc|js|bmp|jp?g|gif|ico|cur|png|swf|htm?|html)$ {
        access_log off;
        root $www_root;
}

location ~ .php$
{
        include                         /etc/nginx/fastcgi_params;
        index                           index.html;
        fastcgi_index                   index.html;
        fastcgi_param SCRIPT_FILENAME   $www_root$fastcgi_script_name;
        fastcgi_param QUERY_STRING      $query_string;
        fastcgi_param PATH_INFO         $fastcgi_path_info;
        fastcgi_pass                    127.0.0.1:9000;
        # Директива определяет что ответы FastCGI-сервера с кодом больше или равные 400
        # перенаправлять на обработку nginx'у с помощью директивы error_page
        fastcgi_intercept_errors        on;
        break;
}

location ~ /.ht {
    deny all;
}

location / {
  try_files $uri $uri/index.html;
}

root   /srv/www/ducklington.org/public_html;

location = / {
   index index.html;

location = /index.html {

root /www/my-root;

# http://example.org
# = means exact location
location = / {
    try_files /index.html =404;
}

# disable http://example.org/index as a duplicate content
location = /index      { return 404; }

# This is a general location.
# (e.g. http://example.org/contacts <- contacts.html)
location / {
    # use fastcgi or whatever you need here
    # return 404 if doesn't exist
    try_files $uri.html =404;
}

error_log /var/log/nginx/debug.log debug;

location / {
  try_files $uri $uri/index.html index.html;
}